The sound plays.
Something happens.
Phantone embeds an invisible signal into any audio — a stadium announcement, a TV commercial, a radio spot, a concert PA. The moment a fan's phone hears it, their experience changes. Instantly. Without scanning anything.
One signal. Two experiences — simultaneously.
- The NFL team embeds a signal in their stadium PA announcement.
- The TV network watermarks their ad break.
- The radio station encodes their sponsor spot.
- The concert venue layers a signal into the opening act audio.
Nothing visible changes. The audio sounds identical. The signal is there.
A personalized discount, exclusive to listeners who were actually in the room — or tuned in. No coupon code. No scanning. The sound was the trigger.
All three can be configured simultaneously per campaign. What triggers is up to you.
Three steps. No new infrastructure.
Your audio goes in. The signal comes with it.
Send Phantone your audio file or live stream. We embed an imperceptible signal — inaudible to the human ear, but readable by any device with the Phantone SDK. The audio file is returned exactly as it was, with the signal inside.
Stadium PA. TV. Radio. Streaming. All of it.
The signal survives MP3 compression, Bluetooth, loudspeakers, room acoustics, and a phone mic across the room. It doesn't matter how the audio gets there — if a device can hear it, Phantone can read it.
Fan picks up their phone. Something is already waiting.
The moment the signal is heard, the configured experience fires: the offer appears, the content unlocks, the points credit. No scanning. No code. No user action at all. And your dashboard shows every verified impression, in real time.
Every industry that moves people through sound.
Pro Sports Teams & Leagues
Signal the stadium PA. 60,000 fans unlock personalized offers at halftime.
Live Events & Concerts
Signal the PA. Fans in the venue get exclusive artist content — listeners at home get a different offer.
TV Networks & Broadcast
Watermark an ad break. Know exactly which households heard it — and what they did next.
Radio Networks & Audio
Encode a sponsor spot. Listeners who heard it get an exclusive offer on their phone 30 seconds later.
Automotive Brands & Agencies
A radio ad plays. The listener's phone shows a personalized dealer offer for their city — without a single click.
Attribution that closes the loop between the sound and the sale.
Privacy-safe by architecture
No audio is recorded or transmitted. No device fingerprinting. No listening surveillance. The signal decodes locally on the device — what reaches Phantone is a campaign ID and a timestamp, nothing more. GDPR-compliant by design.
Verifiable, not self-reported
Every impression is cryptographically verified with a W3C Verifiable Credential. You don't have to take our word for it — the proof is in the event itself. Auditable by your agency, your DSP, or any third party.
Every organization that moves people through sound.
Deployed with enterprise partners across all five verticals. Client references available upon request.
Questions we hear from every enterprise buyer.
Ready to close the gap between the sound and the sale?
Phantone is deployed exclusively with enterprise partners. Onboarding includes integration support, campaign configuration, and dedicated account management.